Removing Diamond Shield

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Published 2023-09-08
Do you have Diamond Shield (or some other protective coating) covering the front cap of your coach? Does it have permanent stains that are impossible to clean? You are not alone: there are dozens of videos showing the problem and the solution is universally to remove it. Problem 2: it's SUPER difficult to remove this stuff.
Today, we'll show how Jenifer and I removed the Diamond Shield from our coach.

MAJOR TAKE AWAYS:
-Cover your headlamps before you start spraying cleaners: they will ruin the finish.
-The plastic razors were far superior to the plastic scrapers.
-Replace the blade often: a fresh blade made the work relatively easy. Sharpening the blade when it got a ding did allow me to use it a little longer, but we discovered that it was more productive to replace than constantly trying to sharpen a dull blade. We should have bought 200 blades instead of the 100.
-Try to make long, straight cuts. Trying to 'wobble' your way under the shield leaves vast fields of glue debris.
-Use something to improve your grip on the blade holder - you should notice in the video that we started wrapping the end of the scraper with a paper towel to prevent blisters and improve leverage.
-Goo Gone was by far the best product to remove the glue. Spray the Goo Gone on, let it set up, and then scrape it off with the razors.
-After taking the glue off with the Goo Gone we used Mineral Spirits to clean up the Goo Gone haze.
-Wash and wax often if you really want to keep the front cap clean of bug debris.

00:00 - Start
00:35 - First Impressions
03:03 - The Gear
05:17 - First Attempt
07:41 - Scrapers or Blades?
08:54 - Mineral Spirits Results
09:33 - Day 2 Goof Off and Razor Blades
11:49 - Goof Off or Goo Gone?
13:43 - Day 3
14:44 - Day 4 We've Cracked the Code
16:51 - Finished Removal
19:18 - Before and After


The gear we recommend:
Plastic Razor Blades: amzn.to/3EtyYL4
220 Grit Sandpaper: amzn.to/44KNwR6
Goo Gone: amzn.to/3R7guaS
Mineral Spirits: amzn.to/3Reh8TP
Paper Towels: amzn.to/3PugL6l
Nitril Gloves: amzn.to/44JQ3en

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All Comments (10)
  • Good info all around. Appreciate your effort and dedication in getting this video done. Planning to do mine this fall. And Semper Fi from a fellow Marine.
  • @COMtnPilot
    Wow! Solid work, Brotha! I need to do my 2012 Allegro. Thanks for the tips! It looks amazing! πŸ˜ŽπŸ‡ΊπŸ‡Έ
  • @Powerstroke98
    On our Tiffin, I started getting a patch where the Diamond Shield was bulging out, from the wind (when driving) to where when it rained, the water would go behind the bulging Diamond shield, where it slowly was getting bigger. So, possibly like you, I started looking online as to what to do. In the end, I bought some 3M adhesive remover I could spray on the 'goo' where it would take it off, but it was a lot of work (and rags) but I eventually got the full piece under the windshield wipers, down to the top of the generator compartment, and I did get a little exuberant in one spot, where the paint did scratch slightly. It just so happened...up here in western Canada, where we had a day where it was like 95 degrees out, so the Diamond Shield was hot, and once I started, I just kept peeling...and it was coming off in sheets! Eventually I found getting the adhesive goo off, to be more work that peeling the Diamond Shield, but believe because it was such a hot day, it was 'very' helpful. It did take me 3 hours or so to do the portion mentioned above, from one side of the coach to the other! I do have the products to one day get it all done, but the above mentioned 'bulge' was the worst part, and the rest isn't so bad, as there isn't a lot of mould, albeit a little in some spots, as our coach is an '08 I suppose we're lucky just to have the little we do!
  • @Nubs314
    Did the front of my cracked and crazed diamond shield on my 2007 Thor Mandalay. The only thing that cut through the diamond shield was Brake Cleaner. Bought a case of Brake Cleaner spray and it took two 8 hour days.
  • @bodine46
    Did you use both sides of razor blades.
  • @chrisschiel6741
    Curious. Did you attempt to use a heat gun to loosen the glue???
  • @user-on6uq9gn4b
    It looks great, but what happened to the lettering on the front? Did it come off with the diamond shield?